One sage piece of advice for runners attempting their first marathon is to pick an easy course. This simple instruction isn’t always as easy to follow though. I’d skipped the marathon distance in my climb up the distance ladder, going directly to 50 miles from a base of runs at and just above the half marathon. In 1992 after two attempts at the Deadwood Trail 50 Mile Race I had one finish and one DNF at 43 miles. After two years of experience, I knew that I couldn’t both help with the course marking and organizing, and run the race as well. I started looking around for other reasonably close races as alternates, and the Mosquito Marathon quickly caught my eye.
The race took place in the Colorado’s Mosquito Range on a loop course based out of Leadville. I think this was the second year of the race, which may have had its origins as a training race for the far better known Leadville 100 Miler. It appealed to me with the combination of a beautiful course, extended exposure above treeline, and a chance to bag a fourteener on the way.
My regular running training before the race was meager. But though I wasn’t doing many dedicated runs, my overall conditioning was good. I’d climbed mounts Ranier and Hood earlier in the summer, made two backpacking trips to Wyoming’s Bighorns, had been doing lots of long mountain bike rides, and had several shorter races under my belt.
I drove from Lead, SD to Denver the Thursday before the race. The next day I met with Walt Borneman (of Fourteeners fame) to discuss publishing what would become “Exploring the Black Hills and Badlands,” my hiking guide for the Dakotas. In Leadville the next day I toured the National Mining Hall of Fame & Museum and generally enjoyed hanging around in one of the epicenters of ultrarunning. To put things in perspective, when I asked one of the race organizers how much of the course was runnable, the reply was “all of it.”
Race morning was just as cold as one would expect above 10,000’. I needed gloves, and ear band, wind shell, tights, and a polypro shirt. I carried only one water bottle, which was not enough with the widely spaced aid stations.
The race started with a run up the gravel road along California Gulch. We passed the Asarco Black Cloud Mine, the last operating mine in this famous mining district. I got to the Hardy Hill Aid Station #1 in 1:40, running almost all the way. In Empire Gulch I walked more, the gulch was wet and the trail faint. The climb to the ridge was too steep and rocky for running, but things cleared up as we got above treeline. The ridgeline had a few small snowfields. We climbed over Peerless Mountain at 13,348’, and then around the summit of Mount Sheridan.
The course highpoint was 14,036’ at Mt Sherman, how often could one climb a fourteener and finish a marathon at the same time? Here we passed some other hikers and got a few light snow flurries. I encountered another runner who was cramping pretty badly. I’d brought some of the salt tablets I used at work and gave them to him with instructions to use them with lots of water. Later on, he passed me looking strong and thanking me greatly for the help.
After going over the top of West Gemini and around Dyer Mountain we got to Hands on Saddle at 15.3 miles. The saddle had two relatively easy, short down climbs where it was easiest to go around the ridgeline on the right. I’d been passing a lot of people on the ridgeline and it appeared that many didn’t have a lot of experience off trail. After one more climb up Mount Evans, I got to the second aid station below Mosquito Pass at 17 miles and 5;20, and the end of a six mile stretch above 13.000’.
The third aid station at Lake Isabelle at 21.1 miles required a final 400’ side climb that about did me in. But after we got back on the main route it was mostly old railroad grade back into town. I was getting passed a lot on this section and was glad to spot a spectator coming up the trail, which meant I wasn’t last. Surprisingly, they told me there were still a lot of runners out on the course. I was simply tired, no knee issues or problems with my stomach. Living at 5000’ in Lead, SD kept me in good shape for the altitude in Colorado. I finally rolled into town to finish in 7:15:37 and #53 out of 96 finishers. 
Mosquito Marathon Course Map.
![]() |
| Mosquito Marathon Course Schematic. |
Though 100+ starters was a big race back in those days, the run had been pretty low key and a lot of fun. The run was billed as 26.6 miles, but even so 7:15 was a very modest marathon debut. The extra four tenths of a mile was enough to get a write-up in Ultrarunning Magazine, which back then reported the results of all the ultras in the country. After the run I drove up to the Rabbit Ears Range and slept in my truck at the trailhead for Parkview Mountain. I would have spent a comfy night in the truck if I had remembered to pack my sleeping bag. Snoozing under a few towels and spare cloths didn’t cut it at altitude. Parkview at 12,296’ proved a good post-race hike, not too long or steep. But I found the summit cabin occupied, and thick fog plus light rain deprived me of any views.
My next marathon would not come for another three years, after I moved to Tennessee and ran the Smoky Mountain Marathon in Townsend in 4:14. I doubt there are any official records on this, but suspect if there were I would own some record for taking the most time ever off my PR, by slashing over three hours off my Mosquito Marathon time, and proving that all distances are not created equal.






