From I25 in exit County Line Road at the northern border of El Paso County. Proceed west less then two mile, then turn left on Hwy 105 (just past the RR tracks) into downtown Palmer Lake.
The Airport shuttle between Colorado Springs and Denver stops at the park and ride lot in Monument. From there you'll have to get picked up by a friend. Otherwise you'll have to walk over a mile along the El Paso Trail or try to talk a cabbie into driving up from Monument just to carry you less than two miles.
The Santa Fe Regional trail - Trailhead and parking area is located off of County Line Road, just east of the lake.
Lower and Upper Reservoir Trails - From highway 105, turn west onto S. Valley Rd., then left onto Crescent streets, which hooks right then terminates at the trailhead parking lot (just 0.5 mile west of 105).