Pretty good loop to ride in the middle of the day -- in other words NOT at or near rush hour. You get a taste of suburban 'hoods with houses on large lots, more urban with houses crammed altogether and a few miles of rural riding. This has become on of my go-to 30-milers when I don't want to put the bike on the truck and head out toward Poolesville or Frederick County. But timing is critical. OPT is best. Lots of riding through neighorhoods, using the twists and turns and indirect routing to get from one place to another. Even the occasional sidewalk or paved trail to connect what roads do not. Body is clearly regaining conditioning. Wasn't trying to ride faster than the last time I did this loop but the numbers don't lie: definitely faster. Felt good the whole way; no hour-in break this time and the contact points held up without it. Glad to still be on the 27.5 and 47mm wheels/tires combo, as soooo much of the neighborhood/burb streets are potholed and rough. The extra width matters.